Process of erecting ribbed concrete floors.



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ERECTHJG FHBB CONCRETE FLOORS.

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J. WIDMER l PROCESS 0F ERECTING RIBBED CONCRETE FLOORS APPLICATION FILED NOV- I3. 1916.

2 SHEETS-SHEET 2. 6 1@ A+ /a Patented Jan. 14, 1919.

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lturn are supported at Jtheir lo suitable shape to forni the sides oi ehe SSOURL ASFLIGNOR, BY IMESN ASSIGN- LOES, MISSQUB, A CORPO- 'Bfoll CGNCRETE FLOORS.

rpslicaion filed. November 3.9%. Serial No. `1531,61?.

To all lw from t may concern ,t

Be it known 'that l., ARTHUR `ll. 'Winning a citizen o'i Vlniled Sietes. and e resident of llebsier reves. in the county el? Si., Louis and use of reissonri, here inieeteo.

:L new and. ns fnl .unprovement in Processes i of Erecting' ihbed. Concrel'e Floors, er

which the loller-Thug is fr slieeifieziion.

rlhs invention relates particularly to the centering and forms for the floors oi buildings of several sliories in height. sind has for its objects to perini the floor forms io be used over and over Without deliiyinel the erection of: the building, Further objects are i0 so arrange ihe cenering; for snpporting the 'forms as io permit rapidA ereesion and easy removal of the forros operi; from the centering. l

The invention consisis in supporting the floor ribs on sifl' soi'lit supports. which in ends on the beam forms, sind in supporting the slab portions of the iloorvon hollow Wood 'forms or pans ribs and under surface off 'the floor el:v these forms beingsopported heir en and removable in advance oilE elle sofisujpports.

Further objects und demilsmi the inrertion appear in the followingr description of several embodimenls thereof, reference beine; had to the accompanying drawings.

'n 'same referq n the dreiingzs. wherein ehe ence characters are used to c "annie che saine parte enjoeering' in rho s views,

Figure 'l is n seeiionel rief: e ribbed conerei'e Hoor wi''h ell snpnorls und *ferne in place. 1he seeizion bein;4 elien parallel to e rib;

Fig. 2 is boi/torn plain View oi" ille seme?. showing the supporre. vor he forni Work in cross-section on che line f-f in n l Fig'. 3 is fr cross-sectie=l oi" ehe door end forms on @he line SW3 in .v the direction of the arrows;

Fig. il: is :in enlergecl View similar *lo Fig.

l, showing o modified iornx e' conscrnction; Fig. is e cross-section oi2 the construction shown in Fig. 4l. on the line in Fig. i looking 1n bhe direction of 1 he arrows; Fig. 6 is another cross-secion of the saine,

on line 6 6 in Fig. l looking in the direc-lion of the arrows, "che section changing; lo diie righi; of i'he breuk o the line (Sn-6% of the form n'orlc being broken away to uncover ports behind;

Y is e. View similar to 5. showing snelher forni oi' construction;

8 is e vienv similar to Fig. il, showing the forni of construction shown in Fig. 7 g

Fig'. 9 is a. cross-section of a shallow rib, showing; how forms for a. deep rib can be nlilizegl. 'for ribs of lesser depth.

The ribbed floor shown in the drzuvings eonsislis of e thin slab lO of concrete having ribs 11 on its under side integrally formed therewith. The Vfinished floor is supported on Walls i2 and on intermediate beams 13. The lower edges of the ribs l1 are supported lduringY construction on soiit members lil `diverge and :ire supported by Wedfges Q2 from libe blocks 19.

he sides of bhe ribs 1l ond under suriiice oi' he floor are supported by pan shaped forros Q which are erranged between the sof mcml' lei: und ere snppored neer their Cleats f-Ll. nailed izo bhe sides the member li lhe sho'n1 'i in l. en@ 25 ille dreivin Y. 'l'.he ien 23 here i'erieel ends auf sligfhilr ine ined sides. are arranged to span Llloer space from che side Well 'i2 or beam r3 to the middle cross ribl..

The pen forms 23 een be adjusted vertically Wiih respect to the soit members by Jche clears 211- l'o the soilit member` et the proper height, and thereby the depth of the ribs 1l can be Varied. The depth of 'the ribs may also be `varied by inserting ecldibionel soilit boards 26, supported upon the soi'rii. members 14E by suitable blocks 27, as shown in Fig. 9. Thus the pan forms 23 in ple ee snpineinbers ettninei'l enough 'i f-snnporting. .if n'mfle mail A lie upper floors l one set of pan 'i ,be floor.

l in Figs.

1-, i infini mfrnnnement urine to tlm* shown in I i s in Figs.

:is well inl :it tlieii' ends frs il enel jois'ts Aleal thereto. In anni, @"1 support tlie fioor benin too wifle en of tbe jean orins ts iinilefl to tlie enniiot be used, y.ienezitli tbe Suffit .t tbe pen ini-ins; 'wliieli rest on tlie "s l tlie 7 :incl 8 nml i3, .tor snpperti nis 28 fine; ie pen. forms ewreil :intl the Inder tlie .tioor tile bloels Zei the pini 'forms beanies 35 beln the eonstrnel tinnsnii Eiennis nncl Columns.

and n:

l. C ing seid benin forms for parallel to seid b inelineil been] forms and ro eonstruelion ofi from tlie lower iting it directly to lt ,is obvious that Clie` nnnei' et supporting` merle will'xont departing freni l' elniin the following Supl tlie lower ends of snicl tienefl nclyneent to the rows of pests with tbe spfiee bet `een them un 'centering and Hoor pertecl on seid benin forms 2. @entering tor concrete for] iloors tlie walls,

nges in tlie forms lieniinny be lie inientioii. ns my invention:

enteringfor concrete i'ioorsl compris ws or posts beneath )citing tliein, joists eam forms and rows of struts vfor supporting sind joists,

struts being posi-y obstrueted by the ns ren'iovebly snif :incl jeists.

10ers eoinnrising besiniforn'is and rows of pests beneath parallel to inclined tbe tione adj Gente porting tliein, end on seid benin. forms Centering `for joists and rows of poste' with the noted by the struts for sue fioor forms supported joists.

ribbed concrete floors eei'npriising soiit members adapted to snpport the ribs of said floors,

ranged between seid sofiit lemeinbers, removable supports for seid pen toi-ins positioned.

'near libe ends ef seid pan n lovable sn rel at i rely forms, seid repports being adjustable vertienlly to adjust the height of 'to said soilit supporting seid soilit sei cl pan forms members, joists for forms, and inclined struts for snppoiting the Joists with the space between there unobstructed by the eentering.

4. @entering ior beneath seid beam tliein. soiiit membersI form te benin forni a ends on sind benin fern support the ribs of sind with the s {inee between by tlie eej;

:for seid n i @renier 1 oe l icl sind Spann ribbeel concrete floors Comprising benin forms and rews of posts foi-ins for supporting extending from b s ei to ewereil relatively te sei 'nig l'er ribbed concrete eem suppoited et their is and adapted to floors, jeists parallel the middle of seid {iporting' seid seilit nts for supporting said sind struts being tlie rows of posts them unobstructed ingr` pen forms tween snicl se'lit nienibe, sind en terms sul( end y secured in place eri-ringed beend supports supports bewhereby sei j i''eors inverted pnn slinpe forms twv" eine "zillj sani pan furnis lese listnnti on pen forms en lll) half of the floor span, sofit members between thelower edges of said pans, said sofiit members being rigid and extending from side to side of the floor span, supports for said soit members at the ends and middle thereof, the adjacent ends of said pan forms being supported on center supports :md the opposite ends of said pan forms being supported by the same means which supports the ends of saidsoiit mem- 10 bers, whereby upon lowering said Center supports, said pan forms can be removed and said soiiit members retained in'place.

Signed at St. Louis, Missouri, this ninth day of November, 1916.

ARTHUR J. WIDMER. 

